A Real-Time and Offline Quality Control Methodology for SeaSonde High-Frequency Radar Currents (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• A Real-Time and Offline Quality Control Methodology for SeaSonde High-Frequency Radar Currents (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1175/JTECH-D-11-00217.1 (literal)

Alternative label

• Simone Cosoli, Giorgio Bolzon, Andrea Mazzoldi (2012)
  A Real-Time and Offline Quality Control Methodology for SeaSonde High-Frequency Radar Currents
  in Journal of atmospheric and oceanic technology
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Simone Cosoli, Giorgio Bolzon, Andrea Mazzoldi (literal)

Pagina inizio

• 1313 (literal)

Pagina fine

• 1328 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 29 (literal)

Rivista

• Journal of atmospheric and oceanic technology (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 9 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto Nazionale di Oceanografia e Geofisica Sperimentale, Sgonico, Trieste, Italy Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche, Sezione di Venezia, Venice, Italy (literal)

Titolo

• A Real-Time and Offline Quality Control Methodology for SeaSonde High-Frequency Radar Currents (literal)

Abstract

• A near-real-time and offline quality control methodology for SeaSonde systems is proposed. It is applied on radial current maps and is based on the determination of the signal-to-noise ratio (SNR) values of the Doppler lines that contribute to the hourly radial current at each range-bearing (R, ?) pair, under the assumption that SNR is a proxy for radar data quality. The retrieval of the sequence of Doppler lines is performed through a minimization procedure that takes advantage of the statistical descriptors output in the short-term radial maps. The separation of the contributing Doppler velocities into valid observations and anomalous velocities is based on their spectral quality factor and on a range-dependent noise threshold derived from statistics (average and standard deviation) of the signal amplitudes in the tails of the Doppler spectra. The final product of the quality control procedure is a radial current map, in which Doppler velocities are weighted by their SNR values and their spectral quality factors, and averaged to produce an output that is fully compatible with the proprietary software. This procedure is fast, despite the fact that a large number of combinations might be required during the retrieval of the Doppler lines, and effective, because it removes both evident spikes as well as Doppler velocities that are not clearly identified as anomalous velocities. In principle, this approach can be used to fill gaps in the radar coverage without the need for interpolation in time or space, proved that the Doppler velocities satisfy predetermined SNR constraints. (literal)

Prodotto di

• Marine science institute (ISMAR) (Istituto)
• Conoscenza del livello di funzionalità degli ecosistemi marini soggetti ad attività antropiche e a sfruttamento sostenibile delle risorse (TA.P04.007.001) (Modulo)

Autore CNR

• ANDREA MAZZOLDI (Unità di personale interno)

Incoming links:

Prodotto

• Marine science institute (ISMAR) (Istituto)
• Conoscenza del livello di funzionalità degli ecosistemi marini soggetti ad attività antropiche e a sfruttamento sostenibile delle risorse (TA.P04.007.001) (Modulo)

Autore CNR di

• ANDREA MAZZOLDI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of atmospheric and oceanic technology (Rivista)